Quick-setting vise



G. H. BUCKLEY.

UICK SETTING VISE. APPLICATION SEPT. 15. 1920. nsuzwzn APR. 1. 1922.

1,415,787, Patented Mays), 1922.

550505 H 50c/115K fw ffm@- 4 UNITED STATES PATENT oFFicE.

GEORGE H. BUGKLEY, O1? INDIANAPOLIS, INDIANA, ASSIGN'OR TO NATIONAL METAL PRODUCTS COMPANY, 0F INDIANAPOLIS, INDIANA, A CORPORATION 0F INDIANA.

QUICK-SETTING VISE.

Specification of Letters Patent.

Patented May 9, 1922.

Applicationiled September 15, `1920, Serial No. 410,527. Renewed April 1, 1922. Serial No. 548,800.

To all whom t may concern: i

Be it` known that I, GEORGE H. BUGKLEY, a citizen of the United States, residing at Indianapolis, in the county of Marion and State ot Indiana, have invented a new and useful Quick-Setting Vise, of which the following is a specification.

It is the object of my invention tov produce a substantial and efficient quick-shift milling-machine vise or chuck.

The accompanying drawing illust-rates my invention: Fig. 1` is a vertical central section through a viseembodying my inventiongFig. 2 is a front elevation of such vise; Fig. 3 is a verticaltransverse section on the line 3-3 of Fig. 1; Fig. 4 is a vertical transverse section onthe line4-4 of Fig. l; and Fig. 5 is a horizontal section on the line 5-5 of Fig. 1, taken through the stationary jaw just below the sliding bar.

The base 50 `has the stationary jaw body 51 formed integral therewith, and has a llat undersurface for resting on a milling-machine table or other structure. This base 5() is provided with slotted ears 52 projecting from its sides and at least one end for clamping it to such milling-machine table. The jaw body 51 carries the stationary jaw 53.

The jaw body 51 is provided with an opening' 54 projecting through it longitudinally of the base 50, in which opening is slidably mounted a bar or shank 55. This bar 55 substantially fits the opening 54 near the rear of the latter, but the upper face of such opening is tapered upward toward the front, and the rear part of the lower face of said opening is tapered downward toward the rear, as is clear from Fig. 1, to permit the shank 55 to be tilted slightly to raise its front end. The underfaceof the shank 55 has a central longitudinal slot 56 extending forward from'its rear end, in which slot is removably mounted a hardened-steel toothed bar 57 held in place by screws 58 and a transverse key 58 and provided on its underface with transverse teeth 59, which are preferably approximately V-shaped `and do not extend quite to the ends of said toothed bar. The toothed bar 57 is symmetrical, so that in case of excessive wear at one point it may be removed and turned end for end. The fact that the teeth 59 are V-shaped makes this possible. For this reversibility the bar has keyways near both ends for receiving the transverse key 58.

In the stationary jaw body 51, there is a chamber 60 below the opening 54, and opening thereinto, the forward part of this chainber 60 being wider than the rearward part. A. cross-pin 61 is mounted in the jaw body 5l and projectsthrough the forward wider part of this chamber 60. On this pin 61 a locking pawl 62 pivotally rests, said pawl having a narrow part projecting rearwardly lnto the narrow part of the chamber 60 and provided with teeth 63 on its upper tace, and also being provided with a wider front part, wider than the toothed bar 57, and having a shoulder 64 projecting forward of the pin 61 for engagement by the underface 70 of the shank 55 on the sides of the teeth 59. When the front end of the shank 55 is raised, it allows the shoulder 64 to rise, and the rearwardly projecting toothed portion of thepawl 62 to fall by gravityto separate the teeth 59 and 63, which permits the shank 55 to be slid forward orrearward through the opening 54. When the front end of the shank 55 is lowered, howeventhe shoulder 64 is engaged and pushed downward by the underface of the shank 55, to force upward. the rearward toot-hed endof the pawl 62 to inter-mesh the teeth 63 and 59 and lock the shank 55 against longitudinal movement. The reaction of the worl: between the vise jaws tends to push downward more i'irinly the front end of the shank 55, so that the reaction of the work tends to interrnesh incre firmly the teeth`63 and 59.

`On the frontend of the shank 55 a inevable jaw body 65 is slidably mounted, having a sliding fit onl such shank. This movable jaw body is provided with a suitable j aw 66. The movable jaw body 65 normally rests on the upper face of the forwardly projecting part of the base 50, and is preferably provided on its underface with a tongue 67, chamfered at the corners, which extends downward into a longitudinal groove 68 in the upper face of the base 50, the upper corners of said groove also being chamfered. When the front end of the shank 55 is raised, the jaw body 65 is lifted from the base 50, and the tongue 67 may leave the groove 68; but the chamfering of the tongue and groove cause proper centering ot the parts, without battering, when the front end 0f the shank 55 is tilted down again to lower the jaw body 65.

The front of the jaw body 65 has a plate 69 fastened thereto by screws 7 O7 and au adjusting vscrew 71 projects through this plate into co-operation with an internal thread in a longiutdinal hole 72 in the shank 55. The outer end of the screw 71 is provided with a squared head 73, whereby it may be operated, and with a flange 7 4 which bears against the plate 69 to force such plate and the jaw body 65 along the shank 55 toward the stationary aw body 51. The flange 74 is 'provided with an external groove through which a transverse pin 75 carried by an over-hanging curved flange 76 projecting forward from the plate 69 eX- tends. When the screw 71 is backed off, the jaw body 65 is moved with it by the engagement of this pin 75 with such groove.

In order to limit the movement of the jaw body 65 on thejshank 55, without putting any strain on Vsuch Ajaw'body or the plate 69 or'screws 70, the screw 71 isprovided at an inter-mediate point, in front of the threaded portion thereof, with an ensmalled portion 77 and a key 7S is mounted in a suitable re.-

cess in the shank 55 and co'-operates with such ensmalled portion. The key 78 is thinner than the `length of the ensmalled portion 77, the difference being the distance thescrew 71 is permitted to move on the shank 55. Thus the. range of movement of the aw body is a limited one, so that for major settings of the distances between the two jaws it is necessary to slide t-he shank 55 in or out after first lifting lits front end, lwhile minor movements between such jaws are obtainable by manipulating the screw 71.

I claim as my invention:

1. A milling machine vise, comprising the combination of a base carrying a stationary jaw, a shank movable longitudinally through said stationary jaw, locking means for holding said shank in a fixed position in said stationary j aw., said locking means being releasable by tilting upward the front end of said shank, and amovable jaw adjustable on said shank and normally resting on said base. v

2. A milling machine vise, lcomprising the combination of a base carrying a stationary jaw, a shank movable longitudinally through said stationary jaw, locking means( for holdI` ing said shank in a fixed position in said stationary aw, said locking means being releasable by tilting upward the front end of said shank, and amovable jaw adjustable on said shank and normally resting on said base, the'engaging facesof said movable jaw and saidbase being provided with a tengue` and groove extending parallel to said shank.

3. A milling machine vise, comprising the combination of a stationary jaw having a base projecting forward therefrom, a movable jaw slidable on said base, said movable jaw and said base having a tongue and groove in their engaging faces, a shank proj ecting through said stationary jaw and connected to said movable j aw, adjusting means for adjusting said'movable jaw along` said shank, said shank being vertically tiltable in said stationary jaw and being provided with teeth on its underface. and a locking pawl tiltably mounted in said stationary aw below said shank and having` a rearwardly projecting part provided with teeth on its upper face for eo-operating with the teeth of said shank and also having a. forwardly projecting portion engaging the underface of said shank to tilt the rear end of the pawl upward when the front end of the shank is tilted downward.

4t. A milling machine vise, comprising the combination of a stationary jaw having a base projecting forward therefrom, a movable jaw slidable on said base, a shank projecting through said stationary jaw and connected to said movable aw, adjusting means for adjusting said movable jaw along said shank, said shank being vertically tiltable in said stationary jaw and being provided with teeth on its under-face, and a locking pawl tiltably mounted in said stationary j aw below said shank and having a rearwardly projecting part provided with teeth on its upper face for co-operating with the tcetl'l of said shank and also having a forwardly projecting' portion engaging the underface of said shank to tilt the rear end of the pawl upward when the .front `end of the shank is tilted downward.

5. A vise, comprising the combination of a stationary jaw, a shank slidably mounted in said stationary aw and vertically tiltable, a movable jaw adjust-ably mounted on said shank, said shank being provided with a longitudinal groove in its underlaee, a toothed bar removably and reversibly mounted in said longitudinal groove, a locking pawl tiltably mounted in said stationary jaw below said shank, said locking pawl having a rearwardly projecting part toothed on its upper face for co-operation with the teeth of said bar and also having a. forwardly projecting portion for engagement with the underface of said shank to tilt the rearward end of the pawl upward when the forward end of the shank tilted downward.

6. A vise, comprising the combination of a stationary jaw, a shank slidably mounted in said stationary jaw and vertically tiltable7 a movable jaw adjustably mounted on said'shank. said shank being provided with a longitudinal groove in its underface, a toothed bar removably mounted in said longitudinal groove, a locking pawl tiltably mounted in said stationary jaw below Said shank, said looking pawl having a rearwardly projecting part toothed on its up- `per face for (3o-operation with the teeth of s'ad bar and also having a forwardly projecting portion for engagement with the underface of said shank to tilt the rearward 

